Home / 135,905.75-203,768.65-64,839.36

Finding the Fourth Proportional to 135,905.75, 203,768.65 and 64,839.36

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Solution

The fourth proportional to 135,905.75, 203,768.65 and 64,839.36 is: 97,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,905.75 : 203,768.65 = 64,839.36 : x
  2. Step 2: Convert to fraction form
    135,905.75/203,768.65 = 64,839.36/x
  3. Step 3: Cross multiply
    135,905.75x = 203,768.65 × 64,839.36
  4. Step 4: Simplify right side
    135,905.75x = 13,212,228,854.06
  5. Step 5: Solve for x
    x = 13,212,228,854.06/135,905.75
  6. Step 6: Final answer
    x = 97,216.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.